How to populate Hkcu entries for all the logged on users

Say if we need to set a HKCU reg key for all the logged on users then we may write a batch file to include

In the batch file we can write it as

for /f %%a in ('reg query hku') do (for /f "tokens=3*" %%b in ('reg query "%%a\Control Panel\PowerCfg" /v CurrentPowerPolicy 2^> nul') do reg add "%%a\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /v Start_NotifyNewApps /t REG_DWORD /d 0 /f)